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dataRetrieval - Retrieval Functions for USGS and EPA Hydrology and Water Quality Data

Collection of functions to help retrieve U.S. Geological Survey and U.S. Environmental Protection Agency water quality and hydrology data from web services.

Last updated

usgs

14.04 score 324 stars 16 dependents 1.8k scripts 7.1k downloads

dataRetrieval - Retrieval Functions for USGS and EPA Hydrology and Water Quality Data

Collection of functions to help retrieve U.S. Geological Survey and U.S. Environmental Protection Agency water quality and hydrology data from web services.

Last updated

usgs

14.04 score 324 stars 16 dependents 1.8k scripts 7.1k downloads

EGRET - Exploration and Graphics for RivEr Trends

Statistics and graphics for streamflow history, water quality trends, and the statistical modeling algorithm: Weighted Regressions on Time, Discharge, and Season (WRTDS).

Last updated

usgswater-qualitywater-quality-data

11.15 score 99 stars 1 dependents 421 scripts 456 downloads

toxEval - Exploring Biological Relevance of Environmental Chemistry Observations

Data analysis package for estimating potential biological effects from chemical concentrations in environmental samples. Included are a set of functions to analyze, visualize, and organize measured concentration data as it relates to user-selected chemical-biological interaction benchmark data such as water quality criteria. The intent of these analyses is to develop a better understanding of the potential biological relevance of environmental chemistry data. Results can be used to prioritize which chemicals at which sites may be of greatest concern. These methods are meant to be used as a screening technique to predict potential for biological influence from chemicals that ultimately need to be validated with direct biological assays. A description of the analysis can be found in Blackwell (2017) <doi:10.1021/acs.est.7b01613>.

Last updated

toxicitywater-quality

7.29 score 22 stars 98 scripts 278 downloads

smwrQW - Tools for censored data analysis

This package provides tools for the analysis and graphing of censored data, focussing on water-quality data. It provides a uniform user interface to many different methods for the analysis.

Last updated

fortran

6.69 score 11 stars 1 dependents 89 scripts

smwrGraphs - Graphing Functions

Functions to create high-quality graphs to support statistical methods in water resources. These graphs meet or nearly meet the publication standards of the U.S. Geological Survey.

Last updated

6.50 score 18 stars 1 dependents 148 scripts

smwrBase - Functions to import and manipulate hydrologic data

This package has data import and export functions for specialized formats used within the U.S. Geological Survey. It also contains several functions that are useful for managing or manipulating hydrologic and other data.

Last updated

6.02 score 12 stars 1 dependents 145 scripts

EGRET - Exploration and Graphics for RivEr Trends

Statistics and graphics for streamflow history, water quality trends, and the statistical modeling algorithm: Weighted Regressions on Time, Discharge, and Season (WRTDS).

Last updated

5.88 score 1 dependents 422 scripts 417 downloads

EGRETci - Exploration and Graphics for RivEr Trends Confidence Intervals

Collection of functions to evaluate uncertainty of results from water quality analysis using the Weighted Regressions on Time Discharge and Season (WRTDS) method. This package is an add-on to the EGRET package that performs the WRTDS analysis. The WRTDS modeling method was initially introduced and discussed in Hirsch et al. (2010) <doi:10.1111/j.1752-1688.2010.00482.x>, and expanded in Hirsch and De Cicco (2015) <doi:10.3133/tm4A10>. The paper describing the uncertainty and confidence interval calculations is Hirsch et al. (2015) <doi:10.1016/j.envsoft.2015.07.017>.

Last updated

bootstrapegretusgswater-quality-trends

5.60 score 11 stars 36 scripts 560 downloads

toxEval - Exploring Biological Relevance of Environmental Chemistry Observations

Data analysis package for estimating potential biological effects from chemical concentrations in environmental samples. Included are a set of functions to analyze, visualize, and organize measured concentration data as it relates to user-selected chemical-biological interaction benchmark data such as water quality criteria. The intent of these analyses is to develop a better understanding of the potential biological relevance of environmental chemistry data. Results can be used to prioritize which chemicals at which sites may be of greatest concern. These methods are meant to be used as a screening technique to predict potential for biological influence from chemicals that ultimately need to be validated with direct biological assays. A description of the analysis can be found in Blackwell (2017) <doi:10.1021/acs.est.7b01613>.

Last updated

4.47 score 98 scripts 278 downloads

HASP - Hydrologic AnalySis Package

Data aggregation and plotting of USGS groundwater level data.

Last updated

4.45 score 20 scripts

smwrStats - R functions to support statistical methods in water resources

Useful tools for the analysis of hydrologic data, not inlcuding censored water-quality data.

Last updated

4.21 score 14 stars 1 dependents 78 scripts

Rainmaker - Rainfall event processing

Rainmaker is a collection of functions used to process instantaneous rainfall data to define event rainfall depths, rainfall intensities, rainfall erosivity and antecedent rainfall values. Event definition can be determined solely within rainmaker using the instantaneous rainfall data or can be focused directly on dates and times of interest (for example, using specific water quality sampling periods).

Last updated

3.65 score 18 stars 8 scripts

EGRETci - Exploration and Graphics for RivEr Trends Confidence Intervals

Collection of functions to evaluate uncertainty of results from water quality analysis using the Weighted Regressions on Time Discharge and Season (WRTDS) method. This package is an add-on to the EGRET package that performs the WRTDS analysis. The WRTDS modeling method was initially introduced and discussed in Hirsch et al. (2010) <doi:10.1111/j.1752-1688.2010.00482.x>, and expanded in Hirsch and De Cicco (2015) <doi:10.3133/tm4A10>. The paper describing the uncertainty and confidence interval calculations is Hirsch et al. (2015) <doi:10.1016/j.envsoft.2015.07.017>.

Last updated

3.60 score 40 scripts 569 downloads

restrend - EStimate TRENDs

Collection of functions to estimate linear or monotonic trends in hydrologic data.

Last updated

fortran

3.60 score 2 stars 9 scripts

USGSHydroTools - Collection of functions for hydrological analysis

Collection of functions for storm volume computation (Hydrovol), time series data aggregation, baseflow determination, load computations, and spatial data visualization.

Last updated

3.48 score 20 stars 2 scripts

rloadest - River Load Estimation

Collection of functions to make constituent load estimations based on the LOADEST program.

Last updated

3.36 score 115 scripts

smwrData - Example hydrologic data to support statistical methods in water resources

Datasets as data.frames and as text files from U.S. Geological Survey publications.

Last updated

2.97 score 185 scripts

SampleSplitting - Assists users in loading site data and preparing splitting volumes for the lab

Uses USGS NWISWeb web services to fetch data for the user's desired USGS NWIS stations; calculates sample bottle volumes for provided storm events; and returns this data in a text output file.

Last updated

2.70 score 6 scripts